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序列可控N-取代马来酰亚胺类多元共聚物的研究进展 被引量:1
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作者 赵潜 刘玉飞 +4 位作者 何敏 战奕凯 龚勇吉 李莉萍 于杰 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2019年第9期185-190,共6页
序列可控N-取代马来酰亚胺类多元共聚物一直是高分子序列可控聚合领域的研究热点。文中立足当前国内外N-取代马来酰亚胺类多元共聚物序列可控聚合的研究现状,基于N-取代马来酰亚胺特殊的分子结构及其对应构-效关系,分类综述实现N-取代... 序列可控N-取代马来酰亚胺类多元共聚物一直是高分子序列可控聚合领域的研究热点。文中立足当前国内外N-取代马来酰亚胺类多元共聚物序列可控聚合的研究现状,基于N-取代马来酰亚胺特殊的分子结构及其对应构-效关系,分类综述实现N-取代马来酰亚胺多元共聚物序列可控聚合的创新性策略,探究阐释合成机理,并对该领域潜在发展趋势及挑战进行展望,以期为从事聚合物分子序列精确设计的研究者提供普适性参考。 展开更多
关键词 N-取代马来酰亚胺 序列可控聚合 构效关系 合成机理
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Relationship between microvessel density and telomerase activity in hepatocellular carcinoma 被引量:5
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作者 Yun-FengPiao minhe +1 位作者 YangShi Tong-YuTang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2004年第14期2147-2149,共3页
AIM: To study the relationship between microvessel density(MVD), telomerase activity and biological characteristics in hepatocellular carcinoma (HCC).METHODS: S-P immunohistochemical method and telomeric repeat amplif... AIM: To study the relationship between microvessel density(MVD), telomerase activity and biological characteristics in hepatocellular carcinoma (HCC).METHODS: S-P immunohistochemical method and telomeric repeat amplification protocol (TRAP) were respectively used to analyze the MVD and telomerase activity in 58 HCC and adjacent normal tissues.RESULTS: The MVD in HCC with metastasis, lower differentiation or without intact capsule was significantly higher than that in HCC with intact capsule, higher differentiation, or without metastasis. While MVD had no relationship with tumor size, hepatic virus infection and other clinical factors. Telomerase activity was related to differentiation degree, but not to tumor size or histological grade. MVD in HCC with telomerase activity was higher than that in HCC without telomerase activity.CONCLUSION: MVD and telomerase activity may serve as diagnostic criteria of HCC in earlier stage. Meanwhile,there may be a cooperative effect between MVD and telomerase on the growth and metastasis of HCC. 展开更多
关键词 微脉管密度 未端酶 活动性 肝细胞癌 肿瘤
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